Preparation and performance of continuous carbon fiber reinforced polyamide 6 composite tensile rod

doi:10.19491/j.issn.1001-9278.2024.11.014

Abstract

Abstract:

Continuous carbon⁃fiber⁃reinforced polyamide 6 prepreg was used to prepare a composite pull rod through a winding⁃molding process. The tensile properties of the composite pull rod were evaluated by using a self⁃made tensile tool， and its failure mode and failure mechanism were studied. The results indicated that increasing the molding pressure could reduce the pores in the composite as well as the internal defects， make the structure more compact， and improve the tensile strength of the pull rod. The composite pull rod without a collar showed a tensile failure position at its end， and the outer fiber was pulled and split. Only the inner fiber worked until it was pulled and broken. In this case， the tensile strength was low. The composite pull rod with a collar showed a tensile failure position close to the shaft sleeve on the side. The fiber was broken， and the fracture section was relatively flush. During the whole tensile process， the transverse restraint of the collar enabled all fibers to play a good tensile role， resulting in higher tensile strength.

Key words: carbon fiber composite, polyamide 6, pull rod, winding?molding, tensile property

CLC Number:

TQ327.3

SONG Zeming, WAN Jiancheng, HAO Yujing, WANG Fan, ZHOU Wei, PENG Fei. Preparation and performance of continuous carbon fiber reinforced polyamide 6 composite tensile rod[J]. China Plastics, 2024, 38(11): 81-86.

Figures/Tables 13

Fig.1. Overall structure and tensile rod position

Fig.2. Schematic diagram of design model of the composite tensile rod

Fig.3. Model of the rod

厚度/

纵向拉伸模量/

GPa

横向拉伸模量/

GPa

剪切模量/

GPa

泊松比

纵向拉伸

强度/MPa

纵向压缩

强度/MPa

横向拉伸

强度/MPa

横向压缩

强度/MPa

层间剪切

强度/MPa

Tab.1. Mechanical properties of the carbon fiber reinforced polyamide prepreg

Fig.4. Tensile rod laying layer

Fig.5. Stress cloud maps of layer 1 to 40

Fig.6. Tensile rod 1#

Fig.7. Tensile rod 2#

Fig.8. Metallographic micrograph of section of the laminated tensile rods prepared at different forming pressure

Fig.9. Tensile failure form of rod 1#

Fig.10. Tensile failure form of rod 2#

Fig.11. Tensile strength of the composite rods prepared at different molding pressure

Fig.12. Load displacement curves of the two kinds of composite tensile rods

References 18

1	赵新涛，姜宁，王明道，等.纤维增强热塑性复合材料拉挤成型工艺研究进展［J］. 材料导报， 2024，38（01）：224⁃232.
	ZHAO X T， JIANG N， WANG M D， et al. Research progress of pultrusion molding process of fiber reinforced thermoplastic composites ［J］. Materials Reports， 2024， 38（01）： 224⁃232.
2	荣迪，贾志欣，刘立君，等. 环氧树脂/碳纤维复合材料模压制品冲击强度影响因素分析［J］. 中国塑料， 2024， 38（01）： 55⁃61.
	RONG D， JIA Z X， LIU L J， et al. Analysis of influence factors on impact strength of epoxy/carbon⁃fiber⁃composite⁃molded products［J］. China Plastics， 2024， 38（01）： 55⁃61.
3	李成良，杨超，倪爱清，等．复合材料在大型风电叶片上的应用与发展［J］. 复合材料学报， 2023， 40（03）： 1 274⁃1 284.
	LI C L， YANG C， NI A Q， et al. Application and development of composite materials in large⁃scale wind turbine blade［J］. Acta Materiae Compositae Sinica， 2023， 40（3）： 1 274⁃1 284.
4	薛飞彪. 连续玻璃纤维/无机颗粒共增增强尼龙6复合材料的制备与性能研究［D］. 西安：西安建筑科技大学， 2022.
5	宋泽明，万建成，朱波，等．碳纤维复合材料芯导线芯棒压接不同心问题研究［J］. 复合材料科学与工程， 2022（12）： 79⁃85.
	SONG Z M， WAN J C， ZHU B，et al. Research of aluminum conductor composite core crimping with non⁃concentricity［J］. Composites Science and Engineering， 2022（12）： 79⁃85.
6	曹端兴，杨洋，陈新文，等. 连续纤维增强聚合物基体复合材料多轴疲劳研究进展［J］. 复合材料学报， 2024：41.
	CAO D X， YANG Y， CHEN X W，et al. Research progress on multiaxial fatigue of continuous fiber reinforced polymer matrix composite［J］. Acta Materiae Compositae Sinica， 2024：41.
7	RENSEN B F S， MIKKELSEN L P. New advanced materials will enable the bigger wind turbines of the future ［M］. DTU International Energy Report 2021： Perspectives on Wind Energy，2021：125⁃133.
8	Nebe M， Asijee T J， Braun C， et al. Experimental and analytical analysis on the stacking sequence of composite pressure vessels［J］. Composite Structures， 2020， 247： 112429.
9	王业成，王馨锐，王晓宏，等. 复合材料回转壳体纤维缠绕角度设计及试验验证［J］. 昆明理工大学学报， 2024， 02：31⁃38.
	WANG Y C， WANG X R， WANG X H， et al. Fiber winding angle design and experimental verification of composite rotary shell［J］. 2024， 02：31⁃38.
10	YIN D M， LI B M， XIAO H C. Simulation of the winding angles’ influence on the dynamic strength and stiffness of filament wound composite barrel for railgun［J］. IEEE Transactions on Plasma Science， 2019， 47（5）： 2 233⁃2 241.
11	曹建凡，白树林，秦文贞，等. 碳纤维增强热塑性复合材料的制备与性能研究进展［J］. 复合材料学报， 2023， 40（3）： 1 229⁃1 247.
	CAO J F， BAI S L， QIN W Z， et al. Research progress on preparation and properties of carbon fiber reinforced thermoplastic composites［J］. Acta Materiae Compositae Sinica， 2023， 40（3）： 1 229⁃1 247.
12	RYU S C， KIM J Y， CHO C， et al. Improvements of the elec⁃trical conductivity and EMI shielding efficiency for the polycarbonate/ABS/carbon fiber composites prepared by pultrusion process［J］. Macromolecular Research， 2020， 28（2）： 118⁃125.
13	万建成，江明，杨磊，等. 大截面碳纤维导线卡线器夹嘴优化设计［J］. 高科技纤维与应用， 2018， 25（06）： 675⁃682.
	WAN Jiancheng， JIANG Ming， YANG L，et al. Optimization design of grip jaw for large cross section carbon fiber conductor［J］. Chinese Journal of Engineering Design， 2018， 25（06）： 675⁃682.
14	郝玉靖，宋泽明，王帆，等. 平行移动式导线卡线器轻量化设计研究［J］. 高科技纤维与应用， 2023， 48（06）： 55⁃63.
	HAO Yujing， SONG Zeming， WANG F，et al. Research on lightweight of the parallel⁃moving conductor grips［J］. China Chemical Fibers Association Journal， 2023， 48（06）： 55⁃63.
15	张新异，孔海娟，胡之峰，等. 垫片尺寸对碳纤维复合材料螺栓连接单搭接挤压强度影响研究［J］.复合材料科学与工程，2020（05）：53⁃62.
	ZHANG X Y， KONG H J， HU Z F， et al. Effect of washer size on bearing strength of single⁃lapbolt joint in carbon fiber reinforced composites ［J］. Composites Science and Engineering， 2020（05）：53⁃62.
16	杨康，赵为平，梅莉，等. 复合材料层合板孔挤压力学性能试验研究［J］. 沈阳航空航天大学学报， 2019， 36（04）： 31⁃35.
	YANG K， ZHAO W P， MEI L， et al. Experimental research on extrusion mechanical properties ofcomposite laminates under hole extrusion ［J］. Journal of Shenyang Aerospace University. 2019， 36（04）： 31⁃35.
17	王春浩，李鹏南，李树健，等. CFRP钻削加工过程的分层缺陷研究进展［J］.兵器材料科学与工程， 2019，42（6）： 109⁃115.
	WANG C H， LI P N， LI S J， et al. Research progress on delamination defect in CFRP cutting process ［J］. Ordnance Material Science and Engineering， 2019，42（6）：109⁃115.
18	国家能源局. ，架空输电线路卡线器［S］. 北京：中国电力出版社， 2021：2.

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